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Description

FreeCAD is a general purpose feature-based, parametric 3D modeler for CAD, MCAD, CAx, CAE and PLM, aimed directly at mechanical engineering and product design but also fits a wider range of uses in engineering, such as architecture or other engineering specialties. It is 100% Open Source and extremely modular, allowing for very advanced extension and customization.

FreeCAD is based on OpenCasCade, a powerful geometry kernel, features an Open Inventor-compliant 3D scene representation model provided by the Coin 3D library, and a broad Python API. The interface is built with Qt. FreeCAD runs exactly the same way on Windows, Mac OSX and Linux platforms.

Features

Full parametric model allowing any type of parameter-driven custom objects, that can even be fully programmed in python

Complete access from python built-in interpreter, macros or external scripts to almost any part of FreeCAD, being geometry creation and transformation, the 2D or 3D representation of that geometry (scenegraph) or even the FreeCAD interface

FreeCAD is a powerful open source (LGPL license) parametric 3D CAD program. It is still under development, and version 0.14 was recently released.
FreeCAD has an active web forum too. See the Users Showcase area to see some of what has been done with FreeCAD. There are also forum areas for those people who may have trouble installing FreeCAD, and another area for people who need help using FreeCAD.
I have some YouTube video tutorials under the user name bejant000 that are intended to help new users learn FreeCAD to make 3D models.
I've been using FreeCAD for just over a year (so yeah, I'm biased) and thought I'd post this info to help new FreeCAD users.

Posted 07/22/2014

vicoliang

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FreeCad is very good. There is another free CAD project: sourceforge.net/projects/cadplatform/

Posted 05/12/2014

danielutzkie

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I've downloaded and installed FreeCad on a Windows 8 Platform but I am unable to open the program to start using it.
Can you please help